Chris Ashford / Camera Press / Retna Ltd. 1 / 4
Chris Ashford / Camera Press / Retna Ltd. 1 / 4

Shia LaBeouf finally opens up about his "romance" with Rihanna.

The couple met through a stylist in 2007 while he was filming Indiana Jones, he tells Playboy.

Can you believe these stars dated?

"[I was] filming a sword fight when I got the message. I said, 'Can this be my life?'" he says.

The duo set up a dinner date over text message -- but they never developed much of a relationship.

"It never got beyond one date," he says. "The spark wasn't there. We weren't passionate about each other in that way, so we remain friends."

Check out photos of couples who can't gt enough of each other.

Maybe Rihanna didn't measure up to another woman in his life: mom.

"Probably the sexiest woman I know is my mother," LaBeouf says in the same interview. "She's an ethereal angel. Nobody looks like that woman. If I could meet my mother and marry her, I would. I would be with my mother now, if she weren't my mother, as sick as that sounds."